Hey guys in my carbines I run standard buffers but im thinking of going to a Hbuffer in them. I heard that a Hbuffer may not run with .223 ammo, is this correct?
Thanks
I’m interested in knowing what an H-buffer helps with/hurts as well. If I read Randalls how it works correctly, the H-buffer simply slows down the extraction to the point where the pressure can dissipate, thus easing extraction.
Does your AR run fine with the standard buffer as is? If so, no need to change it, but that’s totally your preference & it should work ok if you do decide to change. I’ve never heard of an H buffer not running with .223 ammo, at least they have on my AR’s.
I ran a standard Buffer in my 16" Carbine for well over 10 years and 12K before I knew I was “suppose” to run a heavy Buffer.
Is your Gun running good???
if so… leave it… that Buffer won’t make you shoot it better…
I won’t debate the need for a heavy buffer or not, but FYI, I have been running an H2 in my Middy for years with no problems of any kind. My stock was originally a pinned RRA that came on my ban rifle. After the sunset I got one of the conversion kits from ADCO, which included this buffer. At the time I didn’t even realize that there were different carbine buffers. It has worked without fail from there out.
-RD62
I shoot alot of AE 50 gr hollow point .223 ammo, it shoots fine in all 3 of my carbines with H buffers as do my reloads.
Increasing buffer weight, carrier weight, etc, and/or reducing recoil impulse with economy ammo will bring the gun closer to functional threshold. How much closer depends on how heavy or light you get. Gas guns need a balance.
(Depending on who made your gun, who knows whether or not you’re getting the right amount of gas anyway, much less for a given tweak.)
Some find that the heavier combos shoot a little softer. That’s cool.
Harv hits the nail on the head: Carbine buffers worked for decades. I wouldn’t switch just because.
All of my H-buffered Colts run with Black Hills .223 reman, various economy loads, and frangibles.
Hello my reasoning for thinking about the swich is to make it alittle easier on the upper.
If your buffer face is getting battered and the firing pin retaining pin is getting deformed/battered… you “MAY” need a heavier buffer.
I run a heavier buffer in my M4 (H now, thinking of going H2) due to builder adjusting the gas port on the barrel under the PRI FSB after results of a “gas test.” I think he adjusted it somewhat TOO LARGE, although I have NEVER had a firearm failure in years of ownership and thousands of rounds. It just beats the crud out of the buffer face and the retaining pin… So I use a heavier buffer to lessen the forces at play…
YMMV…
Rmpl
Usually this is indicative of burrs or a rough finish on the back of the carrier. If you smooth it out with some really fine 1000grit wet/dry sandpaper it’ll keep you carrier from getting ‘jacked up’ (techincal term 
).